Zenn: AI Email Assistant for Gmail | Free Chrome Extension

Zenn transforms your inbox into a smart, AI-assisted workspace. Built as a lightweight Chrome extension powered by ChatGPT, it plugs directly into Gmail to help you compose new messages, draft replies, and clean up grammar and spelling errors without ever leaving your inbox. Whether you're staring at a blank compose window or need to send a quick follow-up nudge, Zenn generates context-aware suggestions instantly. Beyond basic writing help, Zenn offers robust customization: adjust the tone of a message from formal to friendly, shorten a lengthy email into a crisp summary, or translate correspondence into one of 50 languages for global communication. It's designed for anyone who spends hours a day in their inbox—sales reps chasing leads, support agents handling tickets, or executives managing high email volume—giving them a faster, more polished way to communicate. With flexible free and paid tiers based on monthly email volume, Zenn scales from casual users to power users who need hundreds of AI-assisted emails a month, all without requiring a credit card to get started.

1. Install the Zenn extension from the Chrome Web Store. 2. Grant it access to integrate with your Gmail account. 3. Open Gmail and use Zenn's toolbar to compose a new email or generate a suggested reply. 4. Highlight text to fix grammar, rephrase, translate, or adjust tone and length. 5. Review the AI-generated suggestion and insert it into your email with one click. 6. Send as usual, refining as needed before you hit send.